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C90400 Bronze vs. R30006 Cobalt

C90400 bronze belongs to the copper alloys classification, while R30006 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C90400 bronze and the bottom bar is R30006 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 24
1.0
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 41
85
Tensile Strength: Ultimate (UTS), MPa 310
900
Tensile Strength: Yield (Proof), MPa 180
540

Thermal Properties

Latent Heat of Fusion, J/g 190
320
Melting Completion (Liquidus), °C 990
1400
Melting Onset (Solidus), °C 850
1290
Specific Heat Capacity, J/kg-K 370
450
Thermal Conductivity, W/m-K 75
15
Thermal Expansion, µm/m-K 18
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.7

Otherwise Unclassified Properties

Density, g/cm3 8.7
8.6
Embodied Carbon, kg CO2/kg material 3.5
7.8
Embodied Energy, MJ/kg 56
110
Embodied Water, L/kg 370
500

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
7.8
Resilience: Unit (Modulus of Resilience), kJ/m3 150
670
Stiffness to Weight: Axial, points 7.0
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 10
29
Strength to Weight: Bending, points 12
24
Thermal Diffusivity, mm2/s 23
3.9
Thermal Shock Resistance, points 11
26

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.020
0
Boron (B), % 0 to 0.1
0
Carbon (C), % 0
0.9 to 1.4
Chromium (Cr), % 0
27 to 32
Cobalt (Co), % 0
48.6 to 68.1
Copper (Cu), % 86 to 89
0
Iron (Fe), % 0 to 0.4
0 to 3.0
Lead (Pb), % 0 to 0.090
0
Manganese (Mn), % 0 to 0.010
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0 to 1.0
0 to 3.0
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0 to 2.0
Sulfur (S), % 0.1 to 0.65
0
Tin (Sn), % 7.5 to 8.5
0
Tungsten (W), % 0
4.0 to 6.0
Zinc (Zn), % 1.0 to 5.0
0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0 to 0.7
0